Medicare & You 2022 Handbook: https://www.medicare.gov/Pubs/pdf/10050-medicare-and-you.pdf
Services covered by Medicare: https://www.medicare.gov/coverage
Coordination of benefits (when you have Medicare & other insurance): https://www.medicare.gov/supplements-other-insurance/how-medicare-works-with-other-insurance
Link to apply for Medicare A & B (Note: those accepting social security income will automatically be enrolled in Medicare when they turn 65): https://www.ssa.gov/benefits/medicare/
Things to consider when shopping for health insurance
Tools You Should Know About if You Don’t Have Health Insurance!